Common problems in high frequency welding of welded pipe unit

Release Time :

2022-10-27 13:30

1. Weak welding, desoldering, cold stacking;
Reason: output power and pressure are too small;
Solution: 1. Adjust the power: 2. Change the groove shape of the thick material tube blank: 3. Adjust the extrusion force
2. Ripples appear on both sides of the weld;
Reason: the meeting angle is too large,
Solution: 1. Adjust the position of the guide roller: 2. Adjust the solid bending forming section: 3. Increase the welding speed
3. The weld has deep pits and pinholes;
Reason: overheated
Solution: 1. Adjust the position of the guide roller and increase the meeting angle: 2. Adjust the power: 3. Increase the welding speed
4. Weld burrs are too high;
Reason: The heat-affected zone is too wide
Solution: 1 Increase welding speed: 2 Adjust power:
5. Slag inclusion;
Reason: input power is too large, welding speed is too slow
Solution: 1. Adjust the power: 2. Increase the welding speed
6. Cracks outside the weld:
Reason: The quality of the base material is not good; too much extrusion force
Solution: 1 Guaranteed material: 2 Adjust extrusion force
7. Wrong welding, lap welding
Reason: poor forming accuracy;

Steel pipes are classified by production method

Steel pipes can be divided into two categories according to production methods: seamless steel pipes and welded steel pipes, and welded steel pipes are referred to as welded pipes for short.

2022-10-27

Steel pipe coating characteristics

Coated tubes include outer coated tubes, inner coated tubes, and inner and outer coated tubes. Commonly used coatings include plastics, epoxy resins, coal tar epoxy resins, and various glass-type anti-corrosion coating materials. Galvanized pipes are divided into KBG pipes, JDG pipes, threaded pipes, etc.

2022-10-27

What are the uses of steel pipes

Pipeline. Such as: seamless pipes for water, gas pipes, and steam pipes, petroleum pipelines, and pipes for oil and gas trunk lines. Agricultural irrigation faucets with pipes and sprinkler irrigation pipes, etc.

2022-10-27

The most practical steel pipe welding technology

Submerged arc welding technology is ideal for important applications such as pipelines, pressure vessels and tanks, rail manufacturing and large buildings. There are the simplest form of monofilament, double-filament structure, tandem double-filament structure, and multi-filament structure.

2022-10-27

Common problems in high frequency welding of welded pipe unit

Cracks outside the weld Weldingpower supply refers to the equipment with electrical characteristicssuitable for welding in the electric welding machine and provides theelectric energy required for welding, which is called welding powersupply.

2022-10-27

What is welding? What is the difference between ordinary welding

Gas welding is a welding method that uses the flame generated by themixed combustion of combustible gas and combustion supporting gas asthe heat source to melt the weldment and welding material and realizeatomic bonding. Electric welding uses electric energy to pressurize,heat, or both, with or without filler material to achieve atomicbonding of weldments.

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